So you had working 2.0.0, turned the box off, then turned it on and it shows nothing on TV?
You say the LCD clock shows 1:00. Does the time change at all?
What did you have output resolution, color space, HDR settings set to? Had you changed these before turning box off?
If you had working 2.0.0 I suggest trying to install 2.0.0 again. Stage 2 of the Q10 Pro FW 2.0.0 installation process.